Automatically check brewery web page for a favorite beer

I was trying to make a Shortcut to run automatically like every week or so that would go to the webpage where a local brewery lists beers in stock/for sale, get contents of URL or webpage, match text of the beer I want to look out for, alerts me if a match is found, and otherwise does nothing.

I’m stuck because the webpage in question ( at least on Safari in iOS, doesn’t load completely unless there’s some scrolling down. I feel like that should be possible with javascript(?) in Scriptable(?) but I don’t know how to do it.

I could just contact the brewery and ask them to tell me when it’s available. This question is partly to solve a problem and partly to learn a method I’d want to apply in other situations.

Thanks for any guidance. :slight_smile: